61022506155 has 32 divisors (see below), whose sum is σ = 105201573120. Its totient is φ = 30026106240.

The previous prime is 61022506141. The next prime is 61022506157. The reversal of 61022506155 is 55160522016.

It is not a de Polignac number, because 61022506155 - 2¹⁸ = 61022244011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61022506157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295516 + ... + 457574.

It is an arithmetic number, because the mean of its divisors is an integer number (3287549160).

Almost surely, 2^61022506155 is an apocalyptic number.

61022506155 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61022506155 is a deficient number, since it is larger than the sum of its proper divisors (44179066965).

61022506155 is a wasteful number, since it uses less digits than its factorization.

61022506155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164011.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 61022506155 in words is "sixty-one billion, twenty-two million, five hundred six thousand, one hundred fifty-five".