102661135162 has 4 divisors (see below), whose sum is σ = 153991702746. Its totient is φ = 51330567580.

The previous prime is 102661135139. The next prime is 102661135163. The reversal of 102661135162 is 261531166201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 96608450761 + 6052684401 = 310819^2 + 77799^2 .

It is not an unprimeable number, because it can be changed into a prime (102661135163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25665283789 + ... + 25665283792.

Almost surely, 2^102661135162 is an apocalyptic number.

102661135162 is a deficient number, since it is larger than the sum of its proper divisors (51330567584).

102661135162 is an equidigital number, since it uses as much as digits as its factorization.

102661135162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51330567583.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 102661135162 in words is "one hundred two billion, six hundred sixty-one million, one hundred thirty-five thousand, one hundred sixty-two".