1561630523350 has 96 divisors (see below), whose sum is σ = 3046130660160. Its totient is φ = 595111680000.

The previous prime is 1561630523347. The next prime is 1561630523351. The reversal of 1561630523350 is 533250361651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1561630523351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15062991 + ... + 15166309.

It is an arithmetic number, because the mean of its divisors is an integer number (31730527710).

Almost surely, 2^{1561630523350} is an apocalyptic number.

1561630523350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1561630523350 is a deficient number, since it is larger than the sum of its proper divisors (1484500136810).

1561630523350 is a wasteful number, since it uses less digits than its factorization.

1561630523350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103546 (or 103541 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 40.

The spelling of 1561630523350 in words is "one trillion, five hundred sixty-one billion, six hundred thirty million, five hundred twenty-three thousand, three hundred fifty".