201055105453550 has 24 divisors (see below), whose sum is σ = 393644732784600. Its totient is φ = 76189303118880.

The previous prime is 201055105453547. The next prime is 201055105453567. The reversal of 201055105453550 is 55354501550102.

It is a super-2 number, since 2×201055105453550² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201055105453498 and 201055105453507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105818475605 + ... + 105818477504.

It is an arithmetic number, because the mean of its divisors is an integer number (16401863866025).

Almost surely, 2^{201055105453550} is an apocalyptic number.

201055105453550 is a deficient number, since it is larger than the sum of its proper divisors (192589627331050).

201055105453550 is a wasteful number, since it uses less digits than its factorization.

201055105453550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211636953140 (or 211636953135 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 201055105453550 in words is "two hundred one trillion, fifty-five billion, one hundred five million, four hundred fifty-three thousand, five hundred fifty".