20780179151 has 8 divisors (see below), whose sum is σ = 21023251200. Its totient is φ = 20537320320.

The previous prime is 20780179099. The next prime is 20780179159. The reversal of 20780179151 is 15197108702.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20780179151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20780179099 and 20780179108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20780179159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147131 + ... + 251411.

It is an arithmetic number, because the mean of its divisors is an integer number (2627906400).

Almost surely, 2^20780179151 is an apocalyptic number.

20780179151 is a deficient number, since it is larger than the sum of its proper divisors (243072049).

20780179151 is a wasteful number, since it uses less digits than its factorization.

20780179151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106609.

The product of its (nonzero) digits is 35280, while the sum is 41.

The spelling of 20780179151 in words is "twenty billion, seven hundred eighty million, one hundred seventy-nine thousand, one hundred fifty-one".