167616537061421 has 8 divisors (see below), whose sum is σ = 191680517817984. Its totient is φ = 143582246598960.

The previous prime is 167616537061381. The next prime is 167616537061489. The reversal of 167616537061421 is 124160735616761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 167616537061421 - 2²² = 167616532867117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167616537061621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7422561425 + ... + 7422584006.

It is an arithmetic number, because the mean of its divisors is an integer number (23960064727248).

Almost surely, 2^{167616537061421} is an apocalyptic number.

It is an amenable number.

167616537061421 is a deficient number, since it is larger than the sum of its proper divisors (24063980756563).

167616537061421 is a wasteful number, since it uses less digits than its factorization.

167616537061421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14845147051.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 167616537061421 in words is "one hundred sixty-seven trillion, six hundred sixteen billion, five hundred thirty-seven million, sixty-one thousand, four hundred twenty-one".