667234746542 has 16 divisors (see below), whose sum is σ = 1231817993952. Its totient is φ = 263960998560.

The previous prime is 667234746491. The next prime is 667234746601. The reversal of 667234746542 is 245647432766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1833062309 + ... + 1833062672.

It is an arithmetic number, because the mean of its divisors is an integer number (76988624622).

Almost surely, 2^667234746542 is an apocalyptic number.

667234746542 is a deficient number, since it is larger than the sum of its proper divisors (564583247410).

667234746542 is a wasteful number, since it uses less digits than its factorization.

667234746542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666125003.

The product of its digits is 40642560, while the sum is 56.

The spelling of 667234746542 in words is "six hundred sixty-seven billion, two hundred thirty-four million, seven hundred forty-six thousand, five hundred forty-two".