36971599920 has 160 divisors (see below), whose sum is σ = 121596026880. Its totient is φ = 9266503680.

The previous prime is 36971599909. The next prime is 36971599927. The reversal of 36971599920 is 2999517963.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (36971599927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 547200 + ... + 611040.

It is an arithmetic number, because the mean of its divisors is an integer number (759975168).

Almost surely, 2^36971599920 is an apocalyptic number.

36971599920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36971599920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60798013440).

36971599920 is an abundant number, since it is smaller than the sum of its proper divisors (84624426960).

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

36971599920 is a wasteful number, since it uses less digits than its factorization.

36971599920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64003 (or 63997 counting only the distinct ones).

The product of its (nonzero) digits is 8266860, while the sum is 60.

The spelling of 36971599920 in words is "thirty-six billion, nine hundred seventy-one million, five hundred ninety-nine thousand, nine hundred twenty".