15143452020 has 72 divisors (see below), whose sum is σ = 46066948200. Its totient is φ = 4026666240.

The previous prime is 15143452013. The next prime is 15143452033. The reversal of 15143452020 is 2025434151.

15143452020 is a `hidden beast` number, since 151 + 43 + 452 + 0 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7384308624 + 7759143396 = 85932^2 + 88086^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57711 + ... + 183350.

It is an arithmetic number, because the mean of its divisors is an integer number (639818725).

Almost surely, 2^15143452020 is an apocalyptic number.

15143452020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15143452020 is an abundant number, since it is smaller than the sum of its proper divisors (30923496180).

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

15143452020 is a wasteful number, since it uses less digits than its factorization.

15143452020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241425 (or 241420 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 15143452020 its reverse (2025434151), we get a palindrome (17168886171).

The spelling of 15143452020 in words is "fifteen billion, one hundred forty-three million, four hundred fifty-two thousand, twenty".