1154505506660 has 24 divisors (see below), whose sum is σ = 2644867161216. Its totient is φ = 419820184160.

The previous prime is 1154505506599. The next prime is 1154505506711. The reversal of 1154505506660 is 666055054511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2623875932 + ... + 2623876371.

It is an arithmetic number, because the mean of its divisors is an integer number (110202798384).

Almost surely, 2^{1154505506660} is an apocalyptic number.

1154505506660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154505506660 is an abundant number, since it is smaller than the sum of its proper divisors (1490361654556).

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

1154505506660 is a wasteful number, since it uses less digits than its factorization.

1154505506660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247752323 (or 5247752321 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 1154505506660 in words is "one trillion, one hundred fifty-four billion, five hundred five million, five hundred six thousand, six hundred sixty".