166962735540 has 60 divisors (see below), whose sum is σ = 523768290276. Its totient is φ = 44523395712.

The previous prime is 166962735539. The next prime is 166962735551. The reversal of 166962735540 is 45537269661.

166962735540 is a `hidden beast` number, since 1 + 6 + 6 + 9 + 62 + 7 + 35 + 540 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 80688947364 + 86273788176 = 284058^2 + 293724^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51530089 + ... + 51533328.

Almost surely, 2^166962735540 is an apocalyptic number.

166962735540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166962735540 is an abundant number, since it is smaller than the sum of its proper divisors (356805554736).

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

166962735540 is a wasteful number, since it uses less digits than its factorization.

166962735540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103063438 (or 103063427 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 166962735540 in words is "one hundred sixty-six billion, nine hundred sixty-two million, seven hundred thirty-five thousand, five hundred forty".