642453162202 has 16 divisors (see below), whose sum is σ = 1010141903232. Its totient is φ = 306103603680.

The previous prime is 642453162191. The next prime is 642453162203. The reversal of 642453162202 is 202261354246.

It is not an unprimeable number, because it can be changed into a prime (642453162203) 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, 91098738 + ... + 91105789.

It is an arithmetic number, because the mean of its divisors is an integer number (63133868952).

Almost surely, 2^642453162202 is an apocalyptic number.

642453162202 is a deficient number, since it is larger than the sum of its proper divisors (367688741030).

642453162202 is a wasteful number, since it uses less digits than its factorization.

642453162202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182204613.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 642453162202 in words is "six hundred forty-two billion, four hundred fifty-three million, one hundred sixty-two thousand, two hundred two".