1651157064 has 48 divisors (see below), whose sum is σ = 4473817920. Its totient is φ = 550147680.

The previous prime is 1651157033. The next prime is 1651157069. The reversal of 1651157064 is 4607511561.

It is a happy number.

1651157064 is a `hidden beast` number, since 16 + 5 + 11 + 570 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1651157069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261189 + ... + 267435.

It is an arithmetic number, because the mean of its divisors is an integer number (93204540).

Almost surely, 2^1651157064 is an apocalyptic number.

It is an amenable number.

1651157064 is an abundant number, since it is smaller than the sum of its proper divisors (2822660856).

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

1651157064 is a wasteful number, since it uses less digits than its factorization.

1651157064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9930 (or 9923 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 1651157064 is about 40634.4320004599. The cubic root of 1651157064 is about 1181.9419006546.

The spelling of 1651157064 in words is "one billion, six hundred fifty-one million, one hundred fifty-seven thousand, sixty-four".