36540642015 has 72 divisors (see below), whose sum is σ = 66936109968. Its totient is φ = 18437794560.

The previous prime is 36540642001. The next prime is 36540642049. The reversal of 36540642015 is 51024604563.

36540642015 is a `hidden beast` number, since 3 + 6 + 5 + 4 + 0 + 642 + 0 + 1 + 5 = 666.

It is not a de Polignac number, because 36540642015 - 2⁵ = 36540641983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21231355 + ... + 21233075.

It is an arithmetic number, because the mean of its divisors is an integer number (929668194).

Almost surely, 2^36540642015 is an apocalyptic number.

36540642015 is a deficient number, since it is larger than the sum of its proper divisors (30395467953).

36540642015 is a wasteful number, since it uses less digits than its factorization.

36540642015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077 (or 3055 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 36540642015 in words is "thirty-six billion, five hundred forty million, six hundred forty-two thousand, fifteen".