655140300511 has 8 divisors (see below), whose sum is σ = 676283285504. Its totient is φ = 633997904760.

The previous prime is 655140300509. The next prime is 655140300523. The reversal of 655140300511 is 115003041556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655140300511 - 2¹ = 655140300509 is a prime.

It is a super-2 number, since 2×655140300511² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655140300571) 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, 3745570 + ... + 3916576.

It is an arithmetic number, because the mean of its divisors is an integer number (84535410688).

Almost surely, 2^655140300511 is an apocalyptic number.

655140300511 is a deficient number, since it is larger than the sum of its proper divisors (21142984993).

655140300511 is a wasteful number, since it uses less digits than its factorization.

655140300511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294621.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 655140300511 in words is "six hundred fifty-five billion, one hundred forty million, three hundred thousand, five hundred eleven".