642370155644076 has 96 divisors (see below), whose sum is σ = 1575313539410688. Its totient is φ = 203473069873920.

The previous prime is 642370155644071. The next prime is 642370155644201. The reversal of 642370155644076 is 670446551073246.

It is not an unprimeable number, because it can be changed into a prime (642370155644071) 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, 213155046 + ... + 216147666.

It is an arithmetic number, because the mean of its divisors is an integer number (16409516035528).

Almost surely, 2^{642370155644076} is an apocalyptic number.

It is an amenable number.

642370155644076 is an abundant number, since it is smaller than the sum of its proper divisors (932943383766612).

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

642370155644076 is a wasteful number, since it uses less digits than its factorization.

642370155644076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003951 (or 3003949 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 60.

The spelling of 642370155644076 in words is "six hundred forty-two trillion, three hundred seventy billion, one hundred fifty-five million, six hundred forty-four thousand, seventy-six".