109297451520 has 160 divisors (see below), whose sum is σ = 388233901440. Its totient is φ = 29145968640.

The previous prime is 109297451519. The next prime is 109297451537. The reversal of 109297451520 is 25154792901.

109297451520 is a `hidden beast` number, since 1 + 0 + 9 + 2 + 9 + 74 + 51 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721516 + ... + 859755.

It is an arithmetic number, because the mean of its divisors is an integer number (2426461884).

Almost surely, 2^109297451520 is an apocalyptic number.

109297451520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109297451520 is an abundant number, since it is smaller than the sum of its proper divisors (278936449920).

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

109297451520 is an equidigital number, since it uses as much as digits as its factorization.

109297451520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581303 (or 1581281 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 109297451520 in words is "one hundred nine billion, two hundred ninety-seven million, four hundred fifty-one thousand, five hundred twenty".