20541552115 has 48 divisors (see below), whose sum is σ = 30491318592. Its totient is φ = 13006596096.

The previous prime is 20541552089. The next prime is 20541552121. The reversal of 20541552115 is 51125514502.

It is not a de Polignac number, because 20541552115 - 2¹¹ = 20541550067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 516937 + ... + 555253.

It is an arithmetic number, because the mean of its divisors is an integer number (635235804).

Almost surely, 2^20541552115 is an apocalyptic number.

20541552115 is a deficient number, since it is larger than the sum of its proper divisors (9949766477).

20541552115 is a wasteful number, since it uses less digits than its factorization.

20541552115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38416 (or 38399 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 20541552115 in words is "twenty billion, five hundred forty-one million, five hundred fifty-two thousand, one hundred fifteen".