20088815542 has 16 divisors (see below), whose sum is σ = 30553863552. Its totient is φ = 9904265280.

The previous prime is 20088815531. The next prime is 20088815587. The reversal of 20088815542 is 24551888002.

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, 633792 + ... + 664732.

It is an arithmetic number, because the mean of its divisors is an integer number (1909616472).

Almost surely, 2^20088815542 is an apocalyptic number.

20088815542 is a deficient number, since it is larger than the sum of its proper divisors (10465048010).

20088815542 is a wasteful number, since it uses less digits than its factorization.

20088815542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35463.

The product of its (nonzero) digits is 204800, while the sum is 43.

The spelling of 20088815542 in words is "twenty billion, eighty-eight million, eight hundred fifteen thousand, five hundred forty-two".