15145463505 has 16 divisors (see below), whose sum is σ = 24468013440. Its totient is φ = 7999156608.

The previous prime is 15145463497. The next prime is 15145463581. The reversal of 15145463505 is 50536454151.

It is not a de Polignac number, because 15145463505 - 2³ = 15145463497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4899900 + ... + 4902989.

It is an arithmetic number, because the mean of its divisors is an integer number (1529250840).

Almost surely, 2^15145463505 is an apocalyptic number.

15145463505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15145463505 is a deficient number, since it is larger than the sum of its proper divisors (9322549935).

15145463505 is a wasteful number, since it uses less digits than its factorization.

15145463505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9803000.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 15145463505 in words is "fifteen billion, one hundred forty-five million, four hundred sixty-three thousand, five hundred five".