66101536 has 24 divisors (see below), whose sum is σ = 133657020. Its totient is φ = 32156928.

The previous prime is 66101509. The next prime is 66101543. The reversal of 66101536 is 63510166.

It can be written as a sum of positive squares in 2 ways, for example, as 63680400 + 2421136 = 7980^2 + 1556^2 .

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, 26731 + ... + 29098.

Almost surely, 2^66101536 is an apocalyptic number.

It is an amenable number.

66101536 is an abundant number, since it is smaller than the sum of its proper divisors (67555484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66101536 is a wasteful number, since it uses less digits than its factorization.

66101536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55876 (or 55868 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 66101536 is about 8130.2851118519. The cubic root of 66101536 is about 404.3311339335.

The spelling of 66101536 in words is "sixty-six million, one hundred one thousand, five hundred thirty-six".