2651161236040 has 32 divisors (see below), whose sum is σ = 5965297875000. Its totient is φ = 1060431588864.

The previous prime is 2651161236007. The next prime is 2651161236079. The reversal of 2651161236040 is 406321611562.

It can be written as a sum of positive squares in 4 ways, for example, as 1630540009476 + 1020621226564 = 1276926^2 + 1010258^2 .

It is a super-2 number, since 2×2651161236040² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298036 + ... + 2321884.

Almost surely, 2^{2651161236040} is an apocalyptic number.

2651161236040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2651161236040 is an abundant number, since it is smaller than the sum of its proper divisors (3314136638960).

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

2651161236040 is a wasteful number, since it uses less digits than its factorization.

2651161236040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056609 (or 2056605 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 2651161236040 in words is "two trillion, six hundred fifty-one billion, one hundred sixty-one million, two hundred thirty-six thousand, forty".