1361403669610 has 16 divisors (see below), whose sum is σ = 2453399453736. Its totient is φ = 543923057088.

The previous prime is 1361403669589. The next prime is 1361403669611. The reversal of 1361403669610 is 169663041631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 530011664361 + 831392005249 = 728019^2 + 911807^2 .

It is not an unprimeable number, because it can be changed into a prime (1361403669611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79792389 + ... + 79809448.

Almost surely, 2^{1361403669610} is an apocalyptic number.

1361403669610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1361403669610 is a deficient number, since it is larger than the sum of its proper divisors (1091995784126).

1361403669610 is a wasteful number, since it uses less digits than its factorization.

1361403669610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159602697.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 1361403669610 in words is "one trillion, three hundred sixty-one billion, four hundred three million, six hundred sixty-nine thousand, six hundred ten".