2500651660320 has 960 divisors, whose sum is σ = 10277745730560. Its totient is φ = 566179891200.

The previous prime is 2500651660319. The next prime is 2500651660379. The reversal of 2500651660320 is 230661560052.

It is a happy number.

2500651660320 is a `hidden beast` number, since 2 + 50 + 0 + 6 + 516 + 60 + 32 + 0 = 666.

It is a super-2 number, since 2×2500651660320² (a number of 26 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 192306939 + ... + 192319941.

It is an arithmetic number, because the mean of its divisors is an integer number (10705985136).

Almost surely, 2^{2500651660320} is an apocalyptic number.

2500651660320 is a gapful number since it is divisible by the number (20) 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 2500651660320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5138872865280).

2500651660320 is an abundant number, since it is smaller than the sum of its proper divisors (7777094070240).

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

2500651660320 is a wasteful number, since it uses less digits than its factorization.

2500651660320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13131 (or 13114 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 2500651660320 in words is "two trillion, five hundred billion, six hundred fifty-one million, six hundred sixty thousand, three hundred twenty".