20610230740 has 48 divisors (see below), whose sum is σ = 47881217664. Its totient is φ = 7389065600.

The previous prime is 20610230651. The next prime is 20610230741. The reversal of 20610230740 is 4703201602.

It is a super-2 number, since 2×20610230740² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20610230741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644119 + ... + 675358.

It is an arithmetic number, because the mean of its divisors is an integer number (997525368).

Almost surely, 2^20610230740 is an apocalyptic number.

20610230740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20610230740 is an abundant number, since it is smaller than the sum of its proper divisors (27270986924).

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

20610230740 is a wasteful number, since it uses less digits than its factorization.

20610230740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319568 (or 1319566 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The spelling of 20610230740 in words is "twenty billion, six hundred ten million, two hundred thirty thousand, seven hundred forty".