401245254321065 has 16 divisors (see below), whose sum is σ = 600304588283520. Its totient is φ = 250126911784320.

The previous prime is 401245254321053. The next prime is 401245254321071. The reversal of 401245254321065 is 560123452542104.

It is not a de Polignac number, because 401245254321065 - 2⁴² = 396847207809961 is a prime.

It is a super-2 number, since 2×401245254321065² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521097732500 + ... + 521097733269.

It is an arithmetic number, because the mean of its divisors is an integer number (37519036767720).

Almost surely, 2^{401245254321065} is an apocalyptic number.

It is an amenable number.

401245254321065 is a deficient number, since it is larger than the sum of its proper divisors (199059333962455).

401245254321065 is a wasteful number, since it uses less digits than its factorization.

401245254321065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042195465792.

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 401245254321065 in words is "four hundred one trillion, two hundred forty-five billion, two hundred fifty-four million, three hundred twenty-one thousand, sixty-five".