2135520505554 has 16 divisors (see below), whose sum is σ = 4343431537440. Its totient is φ = 699775080800.

The previous prime is 2135520505543. The next prime is 2135520505583. The reversal of 2135520505554 is 4555050255312.

It is a super-2 number, since 2×2135520505554² (a number of 25 digits) contains 22 as substring.

It is a Curzon 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, 3016271547 + ... + 3016272254.

It is an arithmetic number, because the mean of its divisors is an integer number (271464471090).

Almost surely, 2^{2135520505554} is an apocalyptic number.

2135520505554 is an abundant number, since it is smaller than the sum of its proper divisors (2207911031886).

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

2135520505554 is a wasteful number, since it uses less digits than its factorization.

2135520505554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032543865.

The product of its (nonzero) digits is 750000, while the sum is 42.

The spelling of 2135520505554 in words is "two trillion, one hundred thirty-five billion, five hundred twenty million, five hundred five thousand, five hundred fifty-four".