2651201561530 has 64 divisors (see below), whose sum is σ = 5062173719040. Its totient is φ = 997640810496.

The previous prime is 2651201561497. The next prime is 2651201561539. The reversal of 2651201561530 is 351651021562.

It is a happy number.

It is a super-2 number, since 2×2651201561530² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2651201561530.

It is not an unprimeable number, because it can be changed into a prime (2651201561539) 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, 5703211 + ... + 6150529.

It is an arithmetic number, because the mean of its divisors is an integer number (79096464360).

Almost surely, 2^{2651201561530} is an apocalyptic number.

2651201561530 is a deficient number, since it is larger than the sum of its proper divisors (2410972157510).

2651201561530 is a wasteful number, since it uses less digits than its factorization.

2651201561530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447775.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 2651201561530 in words is "two trillion, six hundred fifty-one billion, two hundred one million, five hundred sixty-one thousand, five hundred thirty".