63166690 has 8 divisors (see below), whose sum is σ = 113700060. Its totient is φ = 25266672.

The previous prime is 63166687. The next prime is 63166703. The reversal of 63166690 is 9666136.

It can be written as a sum of positive squares in 2 ways, for example, as 63154809 + 11881 = 7947^2 + 109^2 .

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

It is a super-2 number, since 2×63166690² = 7980061451112200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158325 + ... + 3158344.

Almost surely, 2^63166690 is an apocalyptic number.

63166690 is a deficient number, since it is larger than the sum of its proper divisors (50533370).

63166690 is a wasteful number, since it uses less digits than its factorization.

63166690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316676.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 63166690 is about 7947.7474796322. The cubic root of 63166690 is about 398.2563477363.

It can be divided in two parts, 63 and 166690, that added together give a triangular number (166753 = T₅₇₇).

The spelling of 63166690 in words is "sixty-three million, one hundred sixty-six thousand, six hundred ninety".