20145741132 has 48 divisors (see below), whose sum is σ = 54296548992. Its totient is φ = 5745665280.

The previous prime is 20145741131. The next prime is 20145741137. The reversal of 20145741132 is 23114754102.

It is a self number, because there is not a number n which added to its sum of digits gives 20145741132.

It is not an unprimeable number, because it can be changed into a prime (20145741131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4486558 + ... + 4491045.

It is an arithmetic number, because the mean of its divisors is an integer number (1131178104).

Almost surely, 2^20145741132 is an apocalyptic number.

20145741132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20145741132 is an abundant number, since it is smaller than the sum of its proper divisors (34150807860).

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

20145741132 is a wasteful number, since it uses less digits than its factorization.

20145741132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977638 (or 8977636 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 20145741132 in words is "twenty billion, one hundred forty-five million, seven hundred forty-one thousand, one hundred thirty-two".