1651020616 has 16 divisors (see below), whose sum is σ = 3537901440. Its totient is φ = 707580240.

The previous prime is 1651020611. The next prime is 1651020619. The reversal of 1651020616 is 6160201561.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1651020611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14741200 + ... + 14741311.

It is an arithmetic number, because the mean of its divisors is an integer number (221118840).

Almost surely, 2^1651020616 is an apocalyptic number.

It is an amenable number.

1651020616 is an abundant number, since it is smaller than the sum of its proper divisors (1886880824).

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

1651020616 is a wasteful number, since it uses less digits than its factorization.

1651020616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29482524 (or 29482520 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1651020616 is about 40632.7529955823. The cubic root of 1651020616 is about 1181.9093420619.

The spelling of 1651020616 in words is "one billion, six hundred fifty-one million, twenty thousand, six hundred sixteen".