37225220544 has 168 divisors, whose sum is σ = 112170392880. Its totient is φ = 12238055424.

The previous prime is 37225220533. The next prime is 37225220561. The reversal of 37225220544 is 44502252273.

37225220544 is a `hidden beast` number, since 3 + 72 + 25 + 2 + 20 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 37225220499 and 37225220508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1118902 + ... + 1151690.

It is an arithmetic number, because the mean of its divisors is an integer number (667680910).

Almost surely, 2^37225220544 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 37225220544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56085196440).

37225220544 is an abundant number, since it is smaller than the sum of its proper divisors (74945172336).

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

37225220544 is an equidigital number, since it uses as much as digits as its factorization.

37225220544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32889 (or 32867 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 36.

The spelling of 37225220544 in words is "thirty-seven billion, two hundred twenty-five million, two hundred twenty thousand, five hundred forty-four".