84502142566 has 4 divisors (see below), whose sum is σ = 126753213852. Its totient is φ = 42251071282.

The previous prime is 84502142551. The next prime is 84502142617. The reversal of 84502142566 is 66524120548.

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

It is a super-2 number, since 2×84502142566² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21125535640 + ... + 21125535643.

It is an arithmetic number, because the mean of its divisors is an integer number (31688303463).

Almost surely, 2^84502142566 is an apocalyptic number.

84502142566 is a deficient number, since it is larger than the sum of its proper divisors (42251071286).

84502142566 is a wasteful number, since it uses less digits than its factorization.

84502142566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42251071285.

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 84502142566 in words is "eighty-four billion, five hundred two million, one hundred forty-two thousand, five hundred sixty-six".