401255215105332 has 96 divisors (see below), whose sum is σ = 1085249613127680. Its totient is φ = 113012441418240.

The previous prime is 401255215105211. The next prime is 401255215105363. The reversal of 401255215105332 is 233501512552104.

It is a super-2 number, since 2×401255215105332² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34110469 + ... + 44339987.

It is an arithmetic number, because the mean of its divisors is an integer number (11304683470080).

Almost surely, 2^{401255215105332} is an apocalyptic number.

401255215105332 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401255215105332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542624806563840).

401255215105332 is an abundant number, since it is smaller than the sum of its proper divisors (683994398022348).

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

401255215105332 is a wasteful number, since it uses less digits than its factorization.

401255215105332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10236181 (or 10236179 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

Adding to 401255215105332 its reverse (233501512552104), we get a palindrome (634756727657436).

The spelling of 401255215105332 in words is "four hundred one trillion, two hundred fifty-five billion, two hundred fifteen million, one hundred five thousand, three hundred thirty-two".