157661068 has 12 divisors (see below), whose sum is σ = 276500952. Its totient is φ = 78660800.

The previous prime is 157661057. The next prime is 157661087. The reversal of 157661068 is 860166751.

It is a self number, because there is not a number n which added to its sum of digits gives 157661068.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40333 + ... + 44068.

It is an arithmetic number, because the mean of its divisors is an integer number (23041746).

Almost surely, 2^157661068 is an apocalyptic number.

It is an amenable number.

157661068 is a deficient number, since it is larger than the sum of its proper divisors (118839884).

157661068 is a wasteful number, since it uses less digits than its factorization.

157661068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84872 (or 84870 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 157661068 is about 12556.3158609522. The cubic root of 157661068 is about 540.2251781506.

The spelling of 157661068 in words is "one hundred fifty-seven million, six hundred sixty-one thousand, sixty-eight".