109953917650 has 48 divisors (see below), whose sum is σ = 209369186568. Its totient is φ = 42949440000.

The previous prime is 109953917603. The next prime is 109953917651. The reversal of 109953917650 is 56719359901.

It is a Cunningham number, because it is equal to 331593²+1.

It can be written as a sum of positive squares in 12 ways, for example, as 40686520681 + 69267396969 = 201709^2 + 263187^2 .

It is a junction number, because it is equal to n+sod(n) for n = 109953917591 and 109953917600.

It is not an unprimeable number, because it can be changed into a prime (109953917651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219520 + ... + 517780.

Almost surely, 2^109953917650 is an apocalyptic number.

109953917650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109953917650 is a deficient number, since it is larger than the sum of its proper divisors (99415268918).

109953917650 is a wasteful number, since it uses less digits than its factorization.

109953917650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298447 (or 298442 counting only the distinct ones).

The product of its (nonzero) digits is 2296350, while the sum is 55.

The spelling of 109953917650 in words is "one hundred nine billion, nine hundred fifty-three million, nine hundred seventeen thousand, six hundred fifty".