1630623756680 has 32 divisors (see below), whose sum is σ = 3669465979800. Its totient is φ = 652149497856.

The previous prime is 1630623756673. The next prime is 1630623756689. The reversal of 1630623756680 is 866573260361.

It can be written as a sum of positive squares in 4 ways, for example, as 1274790032356 + 355833724324 = 1129066^2 + 596518^2 .

It is not an unprimeable number, because it can be changed into a prime (1630623756689) 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, 2860727 + ... + 3383046.

Almost surely, 2^{1630623756680} is an apocalyptic number.

1630623756680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630623756680 is an abundant number, since it is smaller than the sum of its proper divisors (2038842223120).

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

1630623756680 is a wasteful number, since it uses less digits than its factorization.

1630623756680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250313 (or 6250309 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 1630623756680 in words is "one trillion, six hundred thirty billion, six hundred twenty-three million, seven hundred fifty-six thousand, six hundred eighty".