37566722020 has 96 divisors (see below), whose sum is σ = 83288798208. Its totient is φ = 14204902272.

The previous prime is 37566721991. The next prime is 37566722023. The reversal of 37566722020 is 2022766573.

It is a super-2 number, since 2×37566722020² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (37566722023) 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, 31647867 + ... + 31649053.

It is an arithmetic number, because the mean of its divisors is an integer number (867591648).

Almost surely, 2^37566722020 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 37566722020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41644399104).

37566722020 is an abundant number, since it is smaller than the sum of its proper divisors (45722076188).

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

37566722020 is a wasteful number, since it uses less digits than its factorization.

37566722020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969 (or 1967 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 37566722020 in words is "thirty-seven billion, five hundred sixty-six million, seven hundred twenty-two thousand, twenty".