142166702500 has 45 divisors (see below), whose sum is σ = 310931377141. Its totient is φ = 56859140000.

The previous prime is 142166702477. The next prime is 142166702543. The reversal of 142166702500 is 5207661241.

The square root of 142166702500 is 377050.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 141657387876 + 509314624 = 376374^2 + 22568^2 .

It is a super-2 number, since 2×142166702500² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 18848730 + ... + 18856270.

Almost surely, 2^142166702500 is an apocalyptic number.

142166702500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142166702500 is the 377050-th square number.

It is an amenable number.

142166702500 is an abundant number, since it is smaller than the sum of its proper divisors (168764674641).

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

142166702500 is an frugal number, since it uses more digits than its factorization.

142166702500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15106 (or 7548 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 142166702500 in words is "one hundred forty-two billion, one hundred sixty-six million, seven hundred two thousand, five hundred".