149621158624550 has 24 divisors (see below), whose sum is σ = 278661052031112. Its totient is φ = 59769818936000.

The previous prime is 149621158624547. The next prime is 149621158624591. The reversal of 149621158624550 is 55426851126941.

It is a super-2 number, since 2×149621158624550² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 149621158624550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1966074416 + ... + 1966150515.

It is an arithmetic number, because the mean of its divisors is an integer number (11610877167963).

Almost surely, 2^{149621158624550} is an apocalyptic number.

149621158624550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149621158624550 is a deficient number, since it is larger than the sum of its proper divisors (129039893406562).

149621158624550 is a wasteful number, since it uses less digits than its factorization.

149621158624550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932225704 (or 3932225699 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 59.

The spelling of 149621158624550 in words is "one hundred forty-nine trillion, six hundred twenty-one billion, one hundred fifty-eight million, six hundred twenty-four thousand, five hundred fifty".