151662861 has 48 divisors (see below), whose sum is σ = 261707264. Its totient is φ = 85975344.

The previous prime is 151662821. The next prime is 151662869. The reversal of 151662861 is 168266151.

151662861 is a `hidden beast` number, since 1 + 516 + 62 + 86 + 1 = 666.

It is not a de Polignac number, because 151662861 - 2¹¹ = 151660813 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (17280) is a multiple of the sum of its prime divisors (720).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151662869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 276990 + ... + 277536.

Almost surely, 2^151662861 is an apocalyptic number.

It is an amenable number.

151662861 is a deficient number, since it is larger than the sum of its proper divisors (110044403).

151662861 is an equidigital number, since it uses as much as digits as its factorization.

151662861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 720 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 151662861 is about 12315.1476239629. The cubic root of 151662861 is about 533.2854664940.

The spelling of 151662861 in words is "one hundred fifty-one million, six hundred sixty-two thousand, eight hundred sixty-one".