201156516 has 36 divisors (see below), whose sum is σ = 554705424. Its totient is φ = 60956400.

The previous prime is 201156511. The next prime is 201156517. The reversal of 201156516 is 615651102.

It is a happy number.

201156516 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 5 + 651 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 201156516.

It is not an unprimeable number, because it can be changed into a prime (201156511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253590 + ... + 254381.

It is an arithmetic number, because the mean of its divisors is an integer number (15408484).

Almost surely, 2^201156516 is an apocalyptic number.

It is an amenable number.

201156516 is an abundant number, since it is smaller than the sum of its proper divisors (353548908).

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

201156516 is a wasteful number, since it uses less digits than its factorization.

201156516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507992 (or 507987 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 201156516 is about 14182.9656983298. The cubic root of 201156516 is about 585.9286062735.

The spelling of 201156516 in words is "two hundred one million, one hundred fifty-six thousand, five hundred sixteen".