67157006677 has 4 divisors (see below), whose sum is σ = 67170182400. Its totient is φ = 67143830956.

The previous prime is 67157006659. The next prime is 67157006713. The reversal of 67157006677 is 77660075176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67157006677 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 (67157006617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6580213 + ... + 6590410.

It is an arithmetic number, because the mean of its divisors is an integer number (16792545600).

Almost surely, 2^67157006677 is an apocalyptic number.

It is an amenable number.

67157006677 is a deficient number, since it is larger than the sum of its proper divisors (13175723).

67157006677 is a wasteful number, since it uses less digits than its factorization.

67157006677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13175722.

The product of its (nonzero) digits is 2593080, while the sum is 52.

The spelling of 67157006677 in words is "sixty-seven billion, one hundred fifty-seven million, six thousand, six hundred seventy-seven".