155005499494 has 16 divisors (see below), whose sum is σ = 238675572432. Its totient is φ = 75458492928.

The previous prime is 155005499483. The next prime is 155005499501. The reversal of 155005499494 is 494994500551.

It is a happy number.

It is a super-3 number, since 3×155005499494³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

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, 2852299 + ... + 2906134.

It is an arithmetic number, because the mean of its divisors is an integer number (14917223277).

Almost surely, 2^155005499494 is an apocalyptic number.

155005499494 is a deficient number, since it is larger than the sum of its proper divisors (83670072938).

155005499494 is a wasteful number, since it uses less digits than its factorization.

155005499494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758791.

The product of its (nonzero) digits is 5832000, while the sum is 55.

The spelling of 155005499494 in words is "one hundred fifty-five billion, five million, four hundred ninety-nine thousand, four hundred ninety-four".