2672161761420 has 144 divisors (see below), whose sum is σ = 8125729248000. Its totient is φ = 710805373056.

The previous prime is 2672161761389. The next prime is 2672161761517. The reversal of 2672161761420 is 241671612762.

2672161761420 is a `hidden beast` number, since 2 + 6 + 7 + 2 + 1 + 6 + 1 + 7 + 614 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122234451 + ... + 122256309.

Almost surely, 2^{2672161761420} is an apocalyptic number.

2672161761420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2672161761420 is an abundant number, since it is smaller than the sum of its proper divisors (5453567486580).

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

2672161761420 is a wasteful number, since it uses less digits than its factorization.

2672161761420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23532 (or 23527 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 2672161761420 in words is "two trillion, six hundred seventy-two billion, one hundred sixty-one million, seven hundred sixty-one thousand, four hundred twenty".