155465824747 has 2 divisors, whose sum is σ = 155465824748. Its totient is φ = 155465824746.

The previous prime is 155465824733. The next prime is 155465824757. The reversal of 155465824747 is 747428564551.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155465824747 is a prime.

It is a super-2 number, since 2×155465824747² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155465824691 and 155465824700.

It is not a weakly prime, because it can be changed into another prime (155465824727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77732912373 + 77732912374.

It is an arithmetic number, because the mean of its divisors is an integer number (77732912374).

Almost surely, 2^155465824747 is an apocalyptic number.

155465824747 is a deficient number, since it is larger than the sum of its proper divisors (1).

155465824747 is an equidigital number, since it uses as much as digits as its factorization.

155465824747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632000, while the sum is 58.

The spelling of 155465824747 in words is "one hundred fifty-five billion, four hundred sixty-five million, eight hundred twenty-four thousand, seven hundred forty-seven".