402554334502155 has 32 divisors (see below), whose sum is σ = 702645011555328. Its totient is φ = 195176548428800.

The previous prime is 402554334502153. The next prime is 402554334502217. The reversal of 402554334502155 is 551205433455204.

It is not a de Polignac number, because 402554334502155 - 2¹ = 402554334502153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402554334502153) 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, 16680475 + ... + 32914235.

It is an arithmetic number, because the mean of its divisors is an integer number (21957656611104).

Almost surely, 2^{402554334502155} is an apocalyptic number.

402554334502155 is a deficient number, since it is larger than the sum of its proper divisors (300090677053173).

402554334502155 is a wasteful number, since it uses less digits than its factorization.

402554334502155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16384067.

The product of its (nonzero) digits is 7200000, while the sum is 48.

Adding to 402554334502155 its reverse (551205433455204), we get a palindrome (953759767957359).

The spelling of 402554334502155 in words is "four hundred two trillion, five hundred fifty-four billion, three hundred thirty-four million, five hundred two thousand, one hundred fifty-five".