3720650915520 has 2016 divisors, whose sum is σ = 17657593035264. Its totient is φ = 727425515520.

The previous prime is 3720650915519. The next prime is 3720650915573. The reversal of 3720650915520 is 255190560273.

3720650915520 is a `hidden beast` number, since 3 + 7 + 2 + 0 + 6 + 5 + 0 + 91 + 552 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1119664579 + ... + 1119667901.

It is an arithmetic number, because the mean of its divisors is an integer number (8758726704).

Almost surely, 2^{3720650915520} is an apocalyptic number.

3720650915520 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 3720650915520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8828796517632).

3720650915520 is an abundant number, since it is smaller than the sum of its proper divisors (13936942119744).

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

3720650915520 is a wasteful number, since it uses less digits than its factorization.

3720650915520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401 (or 3368 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 3720650915520 in words is "three trillion, seven hundred twenty billion, six hundred fifty million, nine hundred fifteen thousand, five hundred twenty".