42151207166555 has 16 divisors (see below), whose sum is σ = 52646652686880. Its totient is φ = 32358430395648.

The previous prime is 42151207166533. The next prime is 42151207166569. The reversal of 42151207166555 is 55566170215124.

It is a cyclic number.

It is not a de Polignac number, because 42151207166555 - 2⁶ = 42151207166491 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891687962 + ... + 891735231.

It is an arithmetic number, because the mean of its divisors is an integer number (3290415792930).

Almost surely, 2^{42151207166555} is an apocalyptic number.

42151207166555 is a deficient number, since it is larger than the sum of its proper divisors (10495445520325).

42151207166555 is a wasteful number, since it uses less digits than its factorization.

42151207166555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783423390.

The product of its (nonzero) digits is 2520000, while the sum is 50.

The spelling of 42151207166555 in words is "forty-two trillion, one hundred fifty-one billion, two hundred seven million, one hundred sixty-six thousand, five hundred fifty-five".