13578006081 has 16 divisors (see below), whose sum is σ = 19059416640. Its totient is φ = 8574428160.

The previous prime is 13578006077. The next prime is 13578006089. The reversal of 13578006081 is 18060087531.

It is not a de Polignac number, because 13578006081 - 2² = 13578006077 is a prime.

It is a super-2 number, since 2×13578006081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13578006089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655621 + ... + 676013.

It is an arithmetic number, because the mean of its divisors is an integer number (1191213540).

Almost surely, 2^13578006081 is an apocalyptic number.

It is an amenable number.

13578006081 is a deficient number, since it is larger than the sum of its proper divisors (5481410559).

13578006081 is a wasteful number, since it uses less digits than its factorization.

13578006081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32096.

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 13578006081 in words is "thirteen billion, five hundred seventy-eight million, six thousand, eighty-one".