401561165104 has 40 divisors (see below), whose sum is σ = 851067099648. Its totient is φ = 182030422080.

The previous prime is 401561165081. The next prime is 401561165147.

401561165104 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×401561165104² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401561165104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3043852 + ... + 3173035.

Almost surely, 2^401561165104 is an apocalyptic number.

401561165104 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

401561165104 is an abundant number, since it is smaller than the sum of its proper divisors (449505934544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401561165104 is a wasteful number, since it uses less digits than its factorization.

401561165104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6217273 (or 6217267 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

It can be divided in two parts, 401561 and 165104, that added together give a palindrome (566665).

The spelling of 401561165104 in words is "four hundred one billion, five hundred sixty-one million, one hundred sixty-five thousand, one hundred four".