201522345534 has 48 divisors (see below), whose sum is σ = 443238307200. Its totient is φ = 66158128080.

The previous prime is 201522345511. The next prime is 201522345547. The reversal of 201522345534 is 435543225102.

201522345534 is a `hidden beast` number, since 2 + 0 + 152 + 23 + 455 + 34 = 666.

It is a super-2 number, since 2×201522345534² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7235367 + ... + 7263165.

It is an arithmetic number, because the mean of its divisors is an integer number (9234131400).

Almost surely, 2^201522345534 is an apocalyptic number.

201522345534 is an abundant number, since it is smaller than the sum of its proper divisors (241715961666).

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

201522345534 is a wasteful number, since it uses less digits than its factorization.

201522345534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33885 (or 33882 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 201522345534 in words is "two hundred one billion, five hundred twenty-two million, three hundred forty-five thousand, five hundred thirty-four".