201533155402452 has 48 divisors (see below), whose sum is σ = 479160574643520. Its totient is φ = 65904159163648.

The previous prime is 201533155402451. The next prime is 201533155402487. The reversal of 201533155402452 is 254204551335102.

It is a super-2 number, since 2×201533155402452² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201533155402451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7624878 + ... + 21475685.

It is an arithmetic number, because the mean of its divisors is an integer number (9982511971740).

Almost surely, 2^{201533155402452} is an apocalyptic number.

It is an amenable number.

201533155402452 is an abundant number, since it is smaller than the sum of its proper divisors (277627419241068).

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

201533155402452 is a wasteful number, since it uses less digits than its factorization.

201533155402452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29111512 (or 29111510 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 201533155402452 in words is "two hundred one trillion, five hundred thirty-three billion, one hundred fifty-five million, four hundred two thousand, four hundred fifty-two".