15533514340 has 12 divisors (see below), whose sum is σ = 32620380156. Its totient is φ = 6213405728.

The previous prime is 15533514319. The next prime is 15533514349. The reversal of 15533514340 is 4341533551.

It can be written as a sum of positive squares in 2 ways, for example, as 3422952036 + 12110562304 = 58506^2 + 110048^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15533514296 and 15533514305.

It is not an unprimeable number, because it can be changed into a prime (15533514349) 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, 388337839 + ... + 388337878.

It is an arithmetic number, because the mean of its divisors is an integer number (2718365013).

Almost surely, 2^15533514340 is an apocalyptic number.

15533514340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15533514340 is an abundant number, since it is smaller than the sum of its proper divisors (17086865816).

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

15533514340 is a wasteful number, since it uses less digits than its factorization.

15533514340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776675726 (or 776675724 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 15533514340 in words is "fifteen billion, five hundred thirty-three million, five hundred fourteen thousand, three hundred forty".