13151661378 has 8 divisors (see below), whose sum is σ = 26303322768. Its totient is φ = 4383887124.

The previous prime is 13151661377. The next prime is 13151661379. The reversal of 13151661378 is 87316615131.

It is an interprime number because it is at equal distance from previous prime (13151661377) and next prime (13151661379).

It is a sphenic number, since it is the product of 3 distinct primes.

13151661378 is an admirable number.

It is a super-3 number, since 3×13151661378³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13151661377) 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, 1095971776 + ... + 1095971787.

It is an arithmetic number, because the mean of its divisors is an integer number (3287915346).

Almost surely, 2^13151661378 is an apocalyptic number.

13151661378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13151661378 is a wasteful number, since it uses less digits than its factorization.

13151661378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191943568.

The product of its digits is 90720, while the sum is 42.

The spelling of 13151661378 in words is "thirteen billion, one hundred fifty-one million, six hundred sixty-one thousand, three hundred seventy-eight".