1680151550 has 144 divisors (see below), whose sum is σ = 3975891360. Its totient is φ = 517017600.

The previous prime is 1680151493. The next prime is 1680151573. The reversal of 1680151550 is 551510861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4107746 + ... + 4108154.

Almost surely, 2^1680151550 is an apocalyptic number.

1680151550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1680151550 is an abundant number, since it is smaller than the sum of its proper divisors (2295739810).

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

1680151550 is a wasteful number, since it uses less digits than its factorization.

1680151550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 32.

The square root of 1680151550 is about 40989.6517428485. The cubic root of 1680151550 is about 1188.8201355640.

The spelling of 1680151550 in words is "one billion, six hundred eighty million, one hundred fifty-one thousand, five hundred fifty".