2961772560 has 160 divisors (see below), whose sum is σ = 10645390080. Its totient is φ = 755453952.

The previous prime is 2961772543. The next prime is 2961772577. The reversal of 2961772560 is 652771692.

2961772560 is a `hidden beast` number, since 2 + 9 + 6 + 17 + 72 + 560 = 666.

It is an interprime number because it is at equal distance from previous prime (2961772543) and next prime (2961772577).

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 31 ways as a sum of consecutive naturals, for example, 19872 + ... + 79488.

It is an arithmetic number, because the mean of its divisors is an integer number (66533688).

Almost surely, 2^2961772560 is an apocalyptic number.

2961772560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2961772560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5322695040).

2961772560 is an abundant number, since it is smaller than the sum of its proper divisors (7683617520).

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

2961772560 is a wasteful number, since it uses less digits than its factorization.

2961772560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59662 (or 59650 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 2961772560 is about 54422.1697472638. The cubic root of 2961772560 is about 1436.0974191816.

The spelling of 2961772560 in words is "two billion, nine hundred sixty-one million, seven hundred seventy-two thousand, five hundred sixty".