1961550914336 has 36 divisors (see below), whose sum is σ = 4181716078722. Its totient is φ = 905331188736.

The previous prime is 1961550914327. The next prime is 1961550914443. The reversal of 1961550914336 is 6334190551691.

It can be written as a sum of positive squares in 3 ways, for example, as 1521127555600 + 440423358736 = 1233340^2 + 663644^2 .

It is a super-2 number, since 2×1961550914336² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181351001 + ... + 181361816.

Almost surely, 2^{1961550914336} is an apocalyptic number.

1961550914336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1961550914336 is an abundant number, since it is smaller than the sum of its proper divisors (2220165164386).

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

1961550914336 is a wasteful number, since it uses less digits than its factorization.

1961550914336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362712853 (or 362712832 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 53.

The spelling of 1961550914336 in words is "one trillion, nine hundred sixty-one billion, five hundred fifty million, nine hundred fourteen thousand, three hundred thirty-six".