78174867011660 has 48 divisors (see below), whose sum is σ = 164245648069440. Its totient is φ = 31255011728640.

The previous prime is 78174867011653. The next prime is 78174867011687. The reversal of 78174867011660 is 6611076847187.

It is a super-2 number, since 2×78174867011660² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78174867011593 and 78174867011602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376245281 + ... + 376452999.

It is an arithmetic number, because the mean of its divisors is an integer number (3421784334780).

Almost surely, 2^{78174867011660} is an apocalyptic number.

It is an amenable number.

78174867011660 is an abundant number, since it is smaller than the sum of its proper divisors (86070781057780).

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

78174867011660 is a wasteful number, since it uses less digits than its factorization.

78174867011660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216626 (or 216624 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 62.

The spelling of 78174867011660 in words is "seventy-eight trillion, one hundred seventy-four billion, eight hundred sixty-seven million, eleven thousand, six hundred sixty".