102156457480 has 128 divisors (see below), whose sum is σ = 286811124480. Its totient is φ = 31814046720.

The previous prime is 102156457457. The next prime is 102156457499. The reversal of 102156457480 is 84754651201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3796554 + ... + 3823366.

It is an arithmetic number, because the mean of its divisors is an integer number (2240711910).

Almost surely, 2^102156457480 is an apocalyptic number.

102156457480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102156457480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143405562240).

102156457480 is an abundant number, since it is smaller than the sum of its proper divisors (184654667000).

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

102156457480 is a wasteful number, since it uses less digits than its factorization.

102156457480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28079 (or 28075 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 102156457480 in words is "one hundred two billion, one hundred fifty-six million, four hundred fifty-seven thousand, four hundred eighty".