667667515053 has 32 divisors (see below), whose sum is σ = 1175176442880. Its totient is φ = 326437896960.

The previous prime is 667667515049. The next prime is 667667515061. The reversal of 667667515053 is 350515766766.

It is not a de Polignac number, because 667667515053 - 2² = 667667515049 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 667667514984 and 667667515002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667667515033) 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, 85005943 + ... + 85013796.

It is an arithmetic number, because the mean of its divisors is an integer number (36724263840).

Almost surely, 2^667667515053 is an apocalyptic number.

It is an amenable number.

667667515053 is a deficient number, since it is larger than the sum of its proper divisors (507508927827).

667667515053 is a wasteful number, since it uses less digits than its factorization.

667667515053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170019777.

The product of its (nonzero) digits is 23814000, while the sum is 57.

The spelling of 667667515053 in words is "six hundred sixty-seven billion, six hundred sixty-seven million, five hundred fifteen thousand, fifty-three".