142166249654 has 16 divisors (see below), whose sum is σ = 250530734160. Its totient is φ = 59650174560.

The previous prime is 142166249579. The next prime is 142166249671. The reversal of 142166249654 is 456942661241.

It is a super-2 number, since 2×142166249654² (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 in 7 ways as a sum of consecutive naturals, for example, 248542109 + ... + 248542680.

It is an arithmetic number, because the mean of its divisors is an integer number (15658170885).

Almost surely, 2^142166249654 is an apocalyptic number.

142166249654 is a deficient number, since it is larger than the sum of its proper divisors (108364484506).

142166249654 is a wasteful number, since it uses less digits than its factorization.

142166249654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497084815.

The product of its digits is 2488320, while the sum is 50.

The spelling of 142166249654 in words is "one hundred forty-two billion, one hundred sixty-six million, two hundred forty-nine thousand, six hundred fifty-four".