36605693985 has 32 divisors (see below), whose sum is σ = 67783434240. Its totient is φ = 16522204608.

The previous prime is 36605693981. The next prime is 36605694007. The reversal of 36605693985 is 58939650663.

It is not a de Polignac number, because 36605693985 - 2² = 36605693981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36605693981) 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, 2198197 + ... + 2214786.

It is an arithmetic number, because the mean of its divisors is an integer number (2118232320).

Almost surely, 2^36605693985 is an apocalyptic number.

36605693985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

36605693985 is a deficient number, since it is larger than the sum of its proper divisors (31177740255).

36605693985 is a wasteful number, since it uses less digits than its factorization.

36605693985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413077.

The product of its (nonzero) digits is 31492800, while the sum is 60.

The spelling of 36605693985 in words is "thirty-six billion, six hundred five million, six hundred ninety-three thousand, nine hundred eighty-five".