401154204521115 has 12 divisors (see below), whose sum is σ = 695333954503344. Its totient is φ = 213948909077904.

The previous prime is 401154204521113. The next prime is 401154204521149. The reversal of 401154204521115 is 511125402451104.

401154204521115 is a `hidden beast` number, since 4 + 0 + 1 + 1 + 5 + 420 + 4 + 5 + 211 + 15 = 666.

It is not a de Polignac number, because 401154204521115 - 2¹ = 401154204521113 is a prime.

It is a super-3 number, since 3×401154204521115³ (a number of 45 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401154204521115.

It is not an unprimeable number, because it can be changed into a prime (401154204521111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4457268939079 + ... + 4457268939168.

It is an arithmetic number, because the mean of its divisors is an integer number (57944496208612).

Almost surely, 2^{401154204521115} is an apocalyptic number.

401154204521115 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

401154204521115 is a deficient number, since it is larger than the sum of its proper divisors (294179749982229).

401154204521115 is a wasteful number, since it uses less digits than its factorization.

401154204521115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8914537878258 (or 8914537878255 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

Adding to 401154204521115 its reverse (511125402451104), we get a palindrome (912279606972219).

The spelling of 401154204521115 in words is "four hundred one trillion, one hundred fifty-four billion, two hundred four million, five hundred twenty-one thousand, one hundred fifteen".