15146664451 has 4 divisors (see below), whose sum is σ = 15255633400. Its totient is φ = 15037695504.

The previous prime is 15146664443. The next prime is 15146664461. The reversal of 15146664451 is 15446664151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15446664151 = 17 ⋅908627303.

It is a cyclic number.

It is not a de Polignac number, because 15146664451 - 2³ = 15146664443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15146664398 and 15146664407.

It is not an unprimeable number, because it can be changed into a prime (15146664461) 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, 54484266 + ... + 54484543.

It is an arithmetic number, because the mean of its divisors is an integer number (3813908350).

Almost surely, 2^15146664451 is an apocalyptic number.

15146664451 is a deficient number, since it is larger than the sum of its proper divisors (108968949).

15146664451 is a wasteful number, since it uses less digits than its factorization.

15146664451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108968948.

The product of its digits is 345600, while the sum is 43.

The spelling of 15146664451 in words is "fifteen billion, one hundred forty-six million, six hundred sixty-four thousand, four hundred fifty-one".