667606630532255 has 16 divisors (see below), whose sum is σ = 870495572582400. Its totient is φ = 489653759573280.

The previous prime is 667606630532249. The next prime is 667606630532287. The reversal of 667606630532255 is 552235036606766.

It is not a de Polignac number, because 667606630532255 - 2²² = 667606626337951 is a prime.

It is a super-2 number, since 2×667606630532255² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 113345774735 + ... + 113345780624.

It is an arithmetic number, because the mean of its divisors is an integer number (54405973286400).

Almost surely, 2^{667606630532255} is an apocalyptic number.

667606630532255 is a deficient number, since it is larger than the sum of its proper divisors (202888942050145).

667606630532255 is a wasteful number, since it uses less digits than its factorization.

667606630532255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226691555414.

The product of its (nonzero) digits is 244944000, while the sum is 62.

The spelling of 667606630532255 in words is "six hundred sixty-seven trillion, six hundred six billion, six hundred thirty million, five hundred thirty-two thousand, two hundred fifty-five".