20769150732 has 96 divisors (see below), whose sum is σ = 54716062464. Its totient is φ = 6076723200.

The previous prime is 20769150707. The next prime is 20769150739. The reversal of 20769150732 is 23705196702.

It is a super-2 number, since 2×20769150732² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20769150739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505183 + ... + 544745.

It is an arithmetic number, because the mean of its divisors is an integer number (569958984).

Almost surely, 2^20769150732 is an apocalyptic number.

20769150732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20769150732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27358031232).

20769150732 is an abundant number, since it is smaller than the sum of its proper divisors (33946911732).

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

20769150732 is a wasteful number, since it uses less digits than its factorization.

20769150732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39719 (or 39717 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The spelling of 20769150732 in words is "twenty billion, seven hundred sixty-nine million, one hundred fifty thousand, seven hundred thirty-two".