20155201132 has 24 divisors (see below), whose sum is σ = 38486310912. Its totient is φ = 9159502800.

The previous prime is 20155201069. The next prime is 20155201151. The reversal of 20155201132 is 23110255102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171157 + ... + 263827.

It is an arithmetic number, because the mean of its divisors is an integer number (1603596288).

Almost surely, 2^20155201132 is an apocalyptic number.

20155201132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20155201132 is a deficient number, since it is larger than the sum of its proper divisors (18331109780).

20155201132 is a wasteful number, since it uses less digits than its factorization.

20155201132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97629 (or 97627 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 20155201132 its reverse (23110255102), we get a palindrome (43265456234).

The spelling of 20155201132 in words is "twenty billion, one hundred fifty-five million, two hundred one thousand, one hundred thirty-two".