201266154552 has 64 divisors (see below), whose sum is σ = 512795289600. Its totient is φ = 65813045760.

The previous prime is 201266154547. The next prime is 201266154601. The reversal of 201266154552 is 255451662102.

It is a super-3 number, since 3×201266154552³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201266154552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127849 + ... + 647207.

It is an arithmetic number, because the mean of its divisors is an integer number (8012426400).

Almost surely, 2^201266154552 is an apocalyptic number.

It is an amenable number.

201266154552 is an abundant number, since it is smaller than the sum of its proper divisors (311529135048).

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

201266154552 is a wasteful number, since it uses less digits than its factorization.

201266154552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519676 (or 519672 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 201266154552 in words is "two hundred one billion, two hundred sixty-six million, one hundred fifty-four thousand, five hundred fifty-two".