1361777620662 has 12 divisors (see below), whose sum is σ = 2950518178140. Its totient is φ = 453925873548.

The previous prime is 1361777620661. The next prime is 1361777620729. The reversal of 1361777620662 is 2660267771631.

It is a happy number.

1361777620662 is a `hidden beast` number, since 1 + 3 + 6 + 1 + 7 + 7 + 7 + 620 + 6 + 6 + 2 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1361777620599 and 1361777620608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361777620661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37827156112 + ... + 37827156147.

It is an arithmetic number, because the mean of its divisors is an integer number (245876514845).

Almost surely, 2^{1361777620662} is an apocalyptic number.

1361777620662 is an abundant number, since it is smaller than the sum of its proper divisors (1588740557478).

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

1361777620662 is a wasteful number, since it uses less digits than its factorization.

1361777620662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75654312267 (or 75654312264 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 1361777620662 in words is "one trillion, three hundred sixty-one billion, seven hundred seventy-seven million, six hundred twenty thousand, six hundred sixty-two".