7661356155000 has 480 divisors, whose sum is σ = 26987977645200. Its totient is φ = 1960422912000.

The previous prime is 7661356154987. The next prime is 7661356155017. The reversal of 7661356155000 is 5516531667.

7661356155000 is a `hidden beast` number, since 7 + 6 + 6 + 1 + 35 + 61 + 550 + 0 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 212696992 + ... + 212733008.

Almost surely, 2^{7661356155000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7661356155000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13493988822600).

7661356155000 is an abundant number, since it is smaller than the sum of its proper divisors (19326621490200).

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

7661356155000 is a wasteful number, since it uses less digits than its factorization.

7661356155000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36241 (or 36219 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 7661356155000 in words is "seven trillion, six hundred sixty-one billion, three hundred fifty-six million, one hundred fifty-five thousand".