36658402131 has 16 divisors (see below), whose sum is σ = 54335697920. Its totient is φ = 21831305760.

The previous prime is 36658402127. The next prime is 36658402139. The reversal of 36658402131 is 13120485663.

It is not a de Polignac number, because 36658402131 - 2² = 36658402127 is a prime.

It is a super-2 number, since 2×36658402131² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36658402131.

It is not an unprimeable number, because it can be changed into a prime (36658402139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15159421 + ... + 15161838.

It is an arithmetic number, because the mean of its divisors is an integer number (3395981120).

Almost surely, 2^36658402131 is an apocalyptic number.

36658402131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

36658402131 is a deficient number, since it is larger than the sum of its proper divisors (17677295789).

36658402131 is a wasteful number, since it uses less digits than its factorization.

36658402131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30321306.

The product of its (nonzero) digits is 103680, while the sum is 39.

Adding to 36658402131 its reverse (13120485663), we get a palindrome (49778887794).

The spelling of 36658402131 in words is "thirty-six billion, six hundred fifty-eight million, four hundred two thousand, one hundred thirty-one".