180697378560 has 144 divisors (see below), whose sum is σ = 577271385600. Its totient is φ = 48171847680.

The previous prime is 180697378559. The next prime is 180697378567. The reversal of 180697378560 is 65873796081.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 180697378494 and 180697378503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180697378567) 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, 23800365 + ... + 23807955.

Almost surely, 2^180697378560 is an apocalyptic number.

180697378560 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 180697378560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288635692800).

180697378560 is an abundant number, since it is smaller than the sum of its proper divisors (396574007040).

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

180697378560 is an equidigital number, since it uses as much as digits as its factorization.

180697378560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13814 (or 13800 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 180697378560 in words is "one hundred eighty billion, six hundred ninety-seven million, three hundred seventy-eight thousand, five hundred sixty".