20511532504054 has 8 divisors (see below), whose sum is σ = 31271680703088. Its totient is φ = 10087638936360.

The previous prime is 20511532504049. The next prime is 20511532504079. The reversal of 20511532504054 is 45040523511502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84063657682 + ... + 84063657925.

It is an arithmetic number, because the mean of its divisors is an integer number (3908960087886).

Almost surely, 2^{20511532504054} is an apocalyptic number.

20511532504054 is a deficient number, since it is larger than the sum of its proper divisors (10760148199034).

20511532504054 is a wasteful number, since it uses less digits than its factorization.

20511532504054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168127315670.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 20511532504054 in words is "twenty trillion, five hundred eleven billion, five hundred thirty-two million, five hundred four thousand, fifty-four".