61290155271465 has 32 divisors (see below), whose sum is σ = 108965121753600. Its totient is φ = 32686629096960.

The previous prime is 61290155271413. The next prime is 61290155271469. The reversal of 61290155271465 is 56417255109216.

61290155271465 is a `hidden beast` number, since 6 + 1 + 2 + 9 + 0 + 155 + 27 + 1 + 465 = 666.

It is not a de Polignac number, because 61290155271465 - 2¹³ = 61290155263273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61290155271469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7045000 + ... + 13122969.

It is an arithmetic number, because the mean of its divisors is an integer number (3405160054800).

Almost surely, 2^{61290155271465} is an apocalyptic number.

It is an amenable number.

61290155271465 is a deficient number, since it is larger than the sum of its proper divisors (47674966482135).

61290155271465 is a wasteful number, since it uses less digits than its factorization.

61290155271465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20190494 (or 20190488 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 61290155271465 in words is "sixty-one trillion, two hundred ninety billion, one hundred fifty-five million, two hundred seventy-one thousand, four hundred sixty-five".