210164145040 has 40 divisors (see below), whose sum is σ = 488668276800. Its totient is φ = 84059354496.

The previous prime is 210164145017. The next prime is 210164145041. The reversal of 210164145040 is 40541461012.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-4 number, since 4×210164145040⁴ (a number of 46 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (210164145041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1059661 + ... + 1242259.

It is an arithmetic number, because the mean of its divisors is an integer number (12216706920).

Almost surely, 2^210164145040 is an apocalyptic number.

210164145040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210164145040 is an abundant number, since it is smaller than the sum of its proper divisors (278504131760).

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

210164145040 is a wasteful number, since it uses less digits than its factorization.

210164145040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196999 (or 196993 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 210164145040 in words is "two hundred ten billion, one hundred sixty-four million, one hundred forty-five thousand, forty".