210145562445 has 64 divisors (see below), whose sum is σ = 428095019520. Its totient is φ = 85618971648.

The previous prime is 210145562411. The next prime is 210145562447. The reversal of 210145562445 is 544265541012.

It is not a de Polignac number, because 210145562445 - 2²⁰ = 210144513869 is a prime.

It is a super-2 number, since 2×210145562445² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210145562447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2614774 + ... + 2693943.

It is an arithmetic number, because the mean of its divisors is an integer number (6688984680).

Almost surely, 2^210145562445 is an apocalyptic number.

It is an amenable number.

210145562445 is an abundant number, since it is smaller than the sum of its proper divisors (217949457075).

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

210145562445 is a wasteful number, since it uses less digits than its factorization.

210145562445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5308774.

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 210145562445 in words is "two hundred ten billion, one hundred forty-five million, five hundred sixty-two thousand, four hundred forty-five".