681214560 has 96 divisors (see below), whose sum is σ = 2310910560. Its totient is φ = 167682048.

The previous prime is 681214559. The next prime is 681214561. The reversal of 681214560 is 65412186.

It is an interprime number because it is at equal distance from previous prime (681214559) and next prime (681214561).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681214561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48345 + ... + 60824.

It is an arithmetic number, because the mean of its divisors is an integer number (24071985).

Almost surely, 2^681214560 is an apocalyptic number.

681214560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

681214560 is an abundant number, since it is smaller than the sum of its proper divisors (1629696000).

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

681214560 is a wasteful number, since it uses less digits than its factorization.

681214560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109200 (or 109192 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 681214560 is about 26100.0873561756. The cubic root of 681214560 is about 879.8891733710.

The spelling of 681214560 in words is "six hundred eighty-one million, two hundred fourteen thousand, five hundred sixty".