1361437140550 has 24 divisors (see below), whose sum is σ = 2591163157176. Its totient is φ = 531910323840.

The previous prime is 1361437140529. The next prime is 1361437140559. The reversal of 1361437140550 is 550417341631.

It is a happy number.

It is a super-2 number, since 2×1361437140550² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361437140559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316611139 + ... + 316615438.

It is an arithmetic number, because the mean of its divisors is an integer number (107965131549).

Almost surely, 2^{1361437140550} is an apocalyptic number.

1361437140550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1361437140550 is a deficient number, since it is larger than the sum of its proper divisors (1229726016626).

1361437140550 is a wasteful number, since it uses less digits than its factorization.

1361437140550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633226632 (or 633226627 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 1361437140550 in words is "one trillion, three hundred sixty-one billion, four hundred thirty-seven million, one hundred forty thousand, five hundred fifty".