1651650051 has 8 divisors (see below), whose sum is σ = 2213267200. Its totient is φ = 1095566472.

The previous prime is 1651650037. The next prime is 1651650053. The reversal of 1651650051 is 1500561561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1651650051 - 2⁵ = 1651650019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1651650053) 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 7 ways as a sum of consecutive naturals, for example, 1382695 + ... + 1383888.

It is an arithmetic number, because the mean of its divisors is an integer number (276658400).

Almost surely, 2^1651650051 is an apocalyptic number.

1651650051 is a deficient number, since it is larger than the sum of its proper divisors (561617149).

1651650051 is a wasteful number, since it uses less digits than its factorization.

1651650051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766785.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 1651650051 is about 40640.4976716575. The cubic root of 1651650051 is about 1182.0595199943.

The spelling of 1651650051 in words is "one billion, six hundred fifty-one million, six hundred fifty thousand, fifty-one".