20145082530 has 32 divisors (see below), whose sum is σ = 49654908864. Its totient is φ = 5226831936.

The previous prime is 20145082499. The next prime is 20145082583. The reversal of 20145082530 is 3528054102.

It is a super-2 number, since 2×20145082530² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9073252 + ... + 9075471.

It is an arithmetic number, because the mean of its divisors is an integer number (1551715902).

Almost surely, 2^20145082530 is an apocalyptic number.

20145082530 is an abundant number, since it is smaller than the sum of its proper divisors (29509826334).

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

20145082530 is a wasteful number, since it uses less digits than its factorization.

20145082530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18148770.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 20145082530 in words is "twenty billion, one hundred forty-five million, eighty-two thousand, five hundred thirty".