159007773602 has 4 divisors (see below), whose sum is σ = 238511660406. Its totient is φ = 79503886800.

The previous prime is 159007773601. The next prime is 159007773641. The reversal of 159007773602 is 206377700951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 206377700951 = 3547 ⋅58183733.

It can be written as a sum of positive squares in only one way, i.e., 99672172681 + 59335600921 = 315709^2 + 243589^2 .

It is not an unprimeable number, because it can be changed into a prime (159007773601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39751943399 + ... + 39751943402.

Almost surely, 2^159007773602 is an apocalyptic number.

159007773602 is a deficient number, since it is larger than the sum of its proper divisors (79503886804).

159007773602 is an equidigital number, since it uses as much as digits as its factorization.

159007773602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79503886803.

The product of its (nonzero) digits is 555660, while the sum is 47.

The spelling of 159007773602 in words is "one hundred fifty-nine billion, seven million, seven hundred seventy-three thousand, six hundred two".