7021566051 has 16 divisors (see below), whose sum is σ = 9426468096. Its totient is φ = 4648913696.

The previous prime is 7021566037. The next prime is 7021566077. The reversal of 7021566051 is 1506651207.

It is not a de Polignac number, because 7021566051 - 2¹³ = 7021557859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7021566001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503296 + ... + 517058.

It is an arithmetic number, because the mean of its divisors is an integer number (589154256).

Almost surely, 2^7021566051 is an apocalyptic number.

7021566051 is a deficient number, since it is larger than the sum of its proper divisors (2404902045).

7021566051 is a wasteful number, since it uses less digits than its factorization.

7021566051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14922.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 7021566051 is about 83794.7853449127. The cubic root of 7021566051 is about 1914.8936626504.

The spelling of 7021566051 in words is "seven billion, twenty-one million, five hundred sixty-six thousand, fifty-one".