401002526205555 has 32 divisors (see below), whose sum is σ = 643527471442944. Its totient is φ = 213227188183296.

The previous prime is 401002526205553. The next prime is 401002526205571. The reversal of 401002526205555 is 555502625200104.

It is a happy number.

It is not a de Polignac number, because 401002526205555 - 2¹ = 401002526205553 is a prime.

It is a super-2 number, since 2×401002526205555² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401002526205553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10303812 + ... + 30135918.

It is an arithmetic number, because the mean of its divisors is an integer number (20110233482592).

Almost surely, 2^{401002526205555} is an apocalyptic number.

401002526205555 is a deficient number, since it is larger than the sum of its proper divisors (242524945237389).

401002526205555 is a wasteful number, since it uses less digits than its factorization.

401002526205555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19836155.

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 401002526205555 in words is "four hundred one trillion, two billion, five hundred twenty-six million, two hundred five thousand, five hundred fifty-five".