1651152680 has 32 divisors (see below), whose sum is σ = 3728530440. Its totient is φ = 658072320.

The previous prime is 1651152667. The next prime is 1651152683. The reversal of 1651152680 is 862511561.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1539934564 + 111218116 = 39242^2 + 10546^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1651152680.

It is not an unprimeable number, because it can be changed into a prime (1651152683) 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, 63431 + ... + 85590.

Almost surely, 2^1651152680 is an apocalyptic number.

1651152680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1651152680 is an abundant number, since it is smaller than the sum of its proper divisors (2077377760).

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

1651152680 is a wasteful number, since it uses less digits than its factorization.

1651152680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149309 (or 149305 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 1651152680 is about 40634.3780560254. The cubic root of 1651152680 is about 1181.9408545926.

The spelling of 1651152680 in words is "one billion, six hundred fifty-one million, one hundred fifty-two thousand, six hundred eighty".