168647470426540 has 96 divisors (see below), whose sum is σ = 406199029017600. Its totient is φ = 57615874525440.

The previous prime is 168647470426529. The next prime is 168647470426573. The reversal of 168647470426540 is 45624074746861.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47745451 + ... + 51155869.

It is an arithmetic number, because the mean of its divisors is an integer number (4231239885600).

Almost surely, 2^{168647470426540} is an apocalyptic number.

168647470426540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168647470426540 is an abundant number, since it is smaller than the sum of its proper divisors (237551558591060).

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

168647470426540 is a wasteful number, since it uses less digits than its factorization.

168647470426540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411695 (or 3411693 counting only the distinct ones).

The product of its (nonzero) digits is 216760320, while the sum is 64.

The spelling of 168647470426540 in words is "one hundred sixty-eight trillion, six hundred forty-seven billion, four hundred seventy million, four hundred twenty-six thousand, five hundred forty".