1155711937450 has 48 divisors (see below), whose sum is σ = 2481037346304. Its totient is φ = 392320872000.

The previous prime is 1155711937433. The next prime is 1155711937451. The reversal of 1155711937450 is 547391175511.

It is a junction number, because it is equal to n+sod(n) for n = 1155711937394 and 1155711937403.

It is not an unprimeable number, because it can be changed into a prime (1155711937451) 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, 16311354 + ... + 16382053.

It is an arithmetic number, because the mean of its divisors is an integer number (51688278048).

Almost surely, 2^{1155711937450} is an apocalyptic number.

1155711937450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155711937450 is an abundant number, since it is smaller than the sum of its proper divisors (1325325408854).

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

1155711937450 is a wasteful number, since it uses less digits than its factorization.

1155711937450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32693527 (or 32693522 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 49.

The spelling of 1155711937450 in words is "one trillion, one hundred fifty-five billion, seven hundred eleven million, nine hundred thirty-seven thousand, four hundred fifty".