1401201115155 has 48 divisors (see below), whose sum is σ = 2488175280864. Its totient is φ = 729024898560.

The previous prime is 1401201115123. The next prime is 1401201115211. The reversal of 1401201115155 is 5515111021041.

1401201115155 is a `hidden beast` number, since 1 + 401 + 201 + 1 + 1 + 5 + 1 + 55 = 666.

It is not a de Polignac number, because 1401201115155 - 2⁵ = 1401201115123 is a prime.

It is a super-2 number, since 2×1401201115155² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37540012 + ... + 37577318.

It is an arithmetic number, because the mean of its divisors is an integer number (51836985018).

Almost surely, 2^{1401201115155} is an apocalyptic number.

1401201115155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1401201115155 is a deficient number, since it is larger than the sum of its proper divisors (1086974165709).

1401201115155 is a wasteful number, since it uses less digits than its factorization.

1401201115155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57716 (or 57713 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 27.

Adding to 1401201115155 its reverse (5515111021041), we get a palindrome (6916312136196).

The spelling of 1401201115155 in words is "one trillion, four hundred one billion, two hundred one million, one hundred fifteen thousand, one hundred fifty-five".