156664162798380 has 768 divisors, whose sum is σ = 551960754831360. Its totient is φ = 36676338057216.

The previous prime is 156664162798321. The next prime is 156664162798411. The reversal of 156664162798380 is 83897261466651.

It is a junction number, because it is equal to n+sod(n) for n = 156664162798299 and 156664162798308.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2748803164 + ... + 2748860156.

It is an arithmetic number, because the mean of its divisors is an integer number (718698899520).

It is a 1-persistent number, because it is pandigital, but 2⋅156664162798380 = 313328325596760 is not.

Almost surely, 2^{156664162798380} is an apocalyptic number.

156664162798380 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 156664162798380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275980377415680).

156664162798380 is an abundant number, since it is smaller than the sum of its proper divisors (395296592032980).

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

156664162798380 is a wasteful number, since it uses less digits than its factorization.

156664162798380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57375 (or 57367 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 72.

The spelling of 156664162798380 in words is "one hundred fifty-six trillion, six hundred sixty-four billion, one hundred sixty-two million, seven hundred ninety-eight thousand, three hundred eighty".