20456101652 has 48 divisors (see below), whose sum is σ = 42912452352. Its totient is φ = 8342231040.

The previous prime is 20456101643. The next prime is 20456101691. The reversal of 20456101652 is 25610165402.

It is a congruent number.

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, 42002 + ... + 206582.

It is an arithmetic number, because the mean of its divisors is an integer number (894009424).

Almost surely, 2^20456101652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20456101652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21456226176).

20456101652 is an abundant number, since it is smaller than the sum of its proper divisors (22456350700).

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

20456101652 is a wasteful number, since it uses less digits than its factorization.

20456101652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164808 (or 164806 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 20456101652 in words is "twenty billion, four hundred fifty-six million, one hundred one thousand, six hundred fifty-two".