10154205440 has 36 divisors (see below), whose sum is σ = 24322498284. Its totient is φ = 4061681664.

The previous prime is 10154205433. The next prime is 10154205449. The reversal of 10154205440 is 4450245101.

It can be written as a sum of positive squares in 2 ways, for example, as 2441150464 + 7713054976 = 49408^2 + 87824^2 .

It is not an unprimeable number, because it can be changed into a prime (10154205449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3965207 + ... + 3967766.

Almost surely, 2^10154205440 is an apocalyptic number.

10154205440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10154205440 is an abundant number, since it is smaller than the sum of its proper divisors (14168292844).

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

10154205440 is an frugal number, since it uses more digits than its factorization.

10154205440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7932994 (or 7932980 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 10154205440 in words is "ten billion, one hundred fifty-four million, two hundred five thousand, four hundred forty".