642323370230355 has 64 divisors (see below), whose sum is σ = 1148620908105216. Its totient is φ = 303799377024000.

The previous prime is 642323370230309. The next prime is 642323370230419. The reversal of 642323370230355 is 553032073323246.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-642323370230355 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54631245 + ... + 65339265.

It is an arithmetic number, because the mean of its divisors is an integer number (17947201689144).

Almost surely, 2^{642323370230355} is an apocalyptic number.

642323370230355 is a deficient number, since it is larger than the sum of its proper divisors (506297537874861).

642323370230355 is a wasteful number, since it uses less digits than its factorization.

642323370230355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10716948.

The product of its (nonzero) digits is 8164800, while the sum is 48.

The spelling of 642323370230355 in words is "six hundred forty-two trillion, three hundred twenty-three billion, three hundred seventy million, two hundred thirty thousand, three hundred fifty-five".