158277664 has 12 divisors (see below), whose sum is σ = 311609214. Its totient is φ = 79138816.

The previous prime is 158277659. The next prime is 158277709. The reversal of 158277664 is 466772851.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 79210000 + 79067664 = 8900^2 + 8892^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2473057 + ... + 2473120.

Almost surely, 2^158277664 is an apocalyptic number.

It is an amenable number.

158277664 is a deficient number, since it is larger than the sum of its proper divisors (153331550).

158277664 is an equidigital number, since it uses as much as digits as its factorization.

158277664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4946187 (or 4946179 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 158277664 is about 12580.8451226458. The cubic root of 158277664 is about 540.9285168347.

The spelling of 158277664 in words is "one hundred fifty-eight million, two hundred seventy-seven thousand, six hundred sixty-four".