20555700152050 has 96 divisors (see below), whose sum is σ = 44334809533440. Its totient is φ = 6944668315200.

The previous prime is 20555700151981. The next prime is 20555700152131. The reversal of 20555700152050 is 5025100755502.

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, 46173421 + ... + 46616479.

It is an arithmetic number, because the mean of its divisors is an integer number (461820932640).

Almost surely, 2^{20555700152050} is an apocalyptic number.

20555700152050 is an abundant number, since it is smaller than the sum of its proper divisors (23779109381390).

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

20555700152050 is a wasteful number, since it uses less digits than its factorization.

20555700152050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445016 (or 445011 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 37.

The spelling of 20555700152050 in words is "twenty trillion, five hundred fifty-five billion, seven hundred million, one hundred fifty-two thousand, fifty".