151661716 has 12 divisors (see below), whose sum is σ = 266784532. Its totient is φ = 75437568.

The previous prime is 151661711. The next prime is 151661723. The reversal of 151661716 is 617166151.

It can be written as a sum of positive squares in 2 ways, for example, as 102941316 + 48720400 = 10146^2 + 6980^2 .

It is a super-2 number, since 2×151661716² = 46002552200129312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151661711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97455 + ... + 98998.

Almost surely, 2^151661716 is an apocalyptic number.

It is an amenable number.

151661716 is a deficient number, since it is larger than the sum of its proper divisors (115122816).

151661716 is a wasteful number, since it uses less digits than its factorization.

151661716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196650 (or 196648 counting only the distinct ones).

The product of its digits is 7560, while the sum is 34.

The square root of 151661716 is about 12315.1011364097. The cubic root of 151661716 is about 533.2841244529.

The spelling of 151661716 in words is "one hundred fifty-one million, six hundred sixty-one thousand, seven hundred sixteen".