159669802 has 4 divisors (see below), whose sum is σ = 239504706. Its totient is φ = 79834900.

The previous prime is 159669799. The next prime is 159669833. The reversal of 159669802 is 208966951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 208966951 = 2213 ⋅94427.

It can be written as a sum of positive squares in only one way, i.e., 80299521 + 79370281 = 8961^2 + 8909^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39917449 + ... + 39917452.

Almost surely, 2^159669802 is an apocalyptic number.

159669802 is a deficient number, since it is larger than the sum of its proper divisors (79834904).

159669802 is an equidigital number, since it uses as much as digits as its factorization.

159669802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79834903.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 159669802 is about 12636.0516776404. The cubic root of 159669802 is about 542.5098097570.

The spelling of 159669802 in words is "one hundred fifty-nine million, six hundred sixty-nine thousand, eight hundred two".