2961608669556 has 48 divisors (see below), whose sum is σ = 7026697429248. Its totient is φ = 970605648000.

The previous prime is 2961608669489. The next prime is 2961608669581. The reversal of 2961608669556 is 6559668061692.

It is a super-2 number, since 2×2961608669556² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860466 + ... + 2581398.

It is an arithmetic number, because the mean of its divisors is an integer number (146389529776).

Almost surely, 2^{2961608669556} is an apocalyptic number.

It is a pronic number, being equal to 1720932×1720933.

It is an amenable number.

2961608669556 is an abundant number, since it is smaller than the sum of its proper divisors (4065088759692).

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

2961608669556 is a wasteful number, since it uses less digits than its factorization.

2961608669556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723352 (or 1723350 counting only the distinct ones).

The product of its (nonzero) digits is 251942400, while the sum is 69.

The spelling of 2961608669556 in words is "two trillion, nine hundred sixty-one billion, six hundred eight million, six hundred sixty-nine thousand, five hundred fifty-six".