10154466440 has 32 divisors (see below), whose sum is σ = 23160536280. Its totient is φ = 4006144512.

The previous prime is 10154466409. The next prime is 10154466449. The reversal of 10154466440 is 4466445101.

It can be written as a sum of positive squares in 4 ways, for example, as 8867235556 + 1287230884 = 94166^2 + 35878^2 .

It is a super-2 number, since 2×10154466440² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10154466440.

It is not an unprimeable number, because it can be changed into a prime (10154466449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1735859 + ... + 1741698.

Almost surely, 2^10154466440 is an apocalyptic number.

10154466440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10154466440 is an abundant number, since it is smaller than the sum of its proper divisors (13006069840).

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

10154466440 is a wasteful number, since it uses less digits than its factorization.

10154466440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477641 (or 3477637 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 10154466440 in words is "ten billion, one hundred fifty-four million, four hundred sixty-six thousand, four hundred forty".