201516866970 has 32 divisors (see below), whose sum is σ = 496711847808. Its totient is φ = 52285457088.

The previous prime is 201516866959. The next prime is 201516866977. The reversal of 201516866970 is 79668615102.

It is a super-3 number, since 3×201516866970³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (201516866977) 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, 90772254 + ... + 90774473.

It is an arithmetic number, because the mean of its divisors is an integer number (15522245244).

Almost surely, 2^201516866970 is an apocalyptic number.

201516866970 is an abundant number, since it is smaller than the sum of its proper divisors (295194980838).

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

201516866970 is a wasteful number, since it uses less digits than its factorization.

201516866970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181546774.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 201516866970 in words is "two hundred one billion, five hundred sixteen million, eight hundred sixty-six thousand, nine hundred seventy".