1680151280 has 40 divisors (see below), whose sum is σ = 3928208400. Its totient is φ = 668300288.

The previous prime is 1680151217. The next prime is 1680151309. The reversal of 1680151280 is 821510861.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44345 + ... + 72984.

It is an arithmetic number, because the mean of its divisors is an integer number (98205210).

Almost surely, 2^1680151280 is an apocalyptic number.

1680151280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1680151280 is an abundant number, since it is smaller than the sum of its proper divisors (2248057120).

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

1680151280 is a wasteful number, since it uses less digits than its factorization.

1680151280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117521 (or 117515 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 1680151280 is about 40989.6484493341. The cubic root of 1680151280 is about 1188.8200718830.

The spelling of 1680151280 in words is "one billion, six hundred eighty million, one hundred fifty-one thousand, two hundred eighty".