20114651240 has 16 divisors (see below), whose sum is σ = 45257965380. Its totient is φ = 8045860480.

The previous prime is 20114651239. The next prime is 20114651269. The reversal of 20114651240 is 4215641102.

It can be written as a sum of positive squares in 2 ways, for example, as 19372742596 + 741908644 = 139186^2 + 27238^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251433101 + ... + 251433180.

Almost surely, 2^20114651240 is an apocalyptic number.

20114651240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20114651240 is an abundant number, since it is smaller than the sum of its proper divisors (25143314140).

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

20114651240 is a wasteful number, since it uses less digits than its factorization.

20114651240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502866292 (or 502866288 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 20114651240 in words is "twenty billion, one hundred fourteen million, six hundred fifty-one thousand, two hundred forty".