36640051340 has 96 divisors (see below), whose sum is σ = 80396574720. Its totient is φ = 14010796800.

The previous prime is 36640051297. The next prime is 36640051351. The reversal of 36640051340 is 4315004663.

It is a junction number, because it is equal to n+sod(n) for n = 36640051297 and 36640051306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31288955 + ... + 31290125.

It is an arithmetic number, because the mean of its divisors is an integer number (837464320).

Almost surely, 2^36640051340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36640051340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40198287360).

36640051340 is an abundant number, since it is smaller than the sum of its proper divisors (43756523380).

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

36640051340 is a wasteful number, since it uses less digits than its factorization.

36640051340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783 (or 1781 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 36640051340 in words is "thirty-six billion, six hundred forty million, fifty-one thousand, three hundred forty".