136671660 has 36 divisors (see below), whose sum is σ = 414571248. Its totient is φ = 36445728.

The previous prime is 136671593. The next prime is 136671677. The reversal of 136671660 is 66176631.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379464 + ... + 379823.

It is an arithmetic number, because the mean of its divisors is an integer number (11515868).

Almost surely, 2^136671660 is an apocalyptic number.

136671660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136671660 is an abundant number, since it is smaller than the sum of its proper divisors (277899588).

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

136671660 is a wasteful number, since it uses less digits than its factorization.

136671660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759302 (or 759297 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 136671660 is about 11690.6655071471. The cubic root of 136671660 is about 515.1015101377.

The spelling of 136671660 in words is "one hundred thirty-six million, six hundred seventy-one thousand, six hundred sixty".