1651556116 has 24 divisors (see below), whose sum is σ = 3304183680. Its totient is φ = 707580192.

The previous prime is 1651556111. The next prime is 1651556117. The reversal of 1651556116 is 6116551561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1651556111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100530 + ... + 115798.

It is an arithmetic number, because the mean of its divisors is an integer number (137674320).

Almost surely, 2^1651556116 is an apocalyptic number.

It is an amenable number.

1651556116 is an abundant number, since it is smaller than the sum of its proper divisors (1652627564).

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

1651556116 is a wasteful number, since it uses less digits than its factorization.

1651556116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19143 (or 19141 counting only the distinct ones).

The product of its digits is 27000, while the sum is 37.

The square root of 1651556116 is about 40639.3419730192. The cubic root of 1651556116 is about 1182.0371103105.

The spelling of 1651556116 in words is "one billion, six hundred fifty-one million, five hundred fifty-six thousand, one hundred sixteen".