73151680 has 168 divisors, whose sum is σ = 213347808. Its totient is φ = 23396352.

The previous prime is 73151671. The next prime is 73151711. The reversal of 73151680 is 8615137.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 647304 + ... + 647416.

Almost surely, 2^73151680 is an apocalyptic number.

73151680 is a gapful number since it is divisible by the number (70) 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 73151680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106673904).

73151680 is an abundant number, since it is smaller than the sum of its proper divisors (140196128).

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

73151680 is a wasteful number, since it uses less digits than its factorization.

73151680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 73151680 is about 8552.8755398404. The cubic root of 73151680 is about 418.2231815647.

The spelling of 73151680 in words is "seventy-three million, one hundred fifty-one thousand, six hundred eighty".