66156202302 has 16 divisors (see below), whose sum is σ = 136580547072. Its totient is φ = 21340710360.

The previous prime is 66156202291. The next prime is 66156202309. The reversal of 66156202302 is 20320265166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66156202309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177839068 + ... + 177839439.

It is an arithmetic number, because the mean of its divisors is an integer number (8536284192).

Almost surely, 2^66156202302 is an apocalyptic number.

66156202302 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

66156202302 is an abundant number, since it is smaller than the sum of its proper divisors (70424344770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66156202302 is a wasteful number, since it uses less digits than its factorization.

66156202302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355678543.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 66156202302 its reverse (20320265166), we get a palindrome (86476467468).

The spelling of 66156202302 in words is "sixty-six billion, one hundred fifty-six million, two hundred two thousand, three hundred two".