145446344554 has 24 divisors (see below), whose sum is σ = 267146350560. Its totient is φ = 59053402296.

The previous prime is 145446344531. The next prime is 145446344557. The reversal of 145446344554 is 455443644541.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 145446344498 and 145446344507.

It is not an unprimeable number, because it can be changed into a prime (145446344557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39054622 + ... + 39058345.

It is an arithmetic number, because the mean of its divisors is an integer number (11131097940).

Almost surely, 2^145446344554 is an apocalyptic number.

145446344554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145446344554 is a deficient number, since it is larger than the sum of its proper divisors (121700006006).

145446344554 is a wasteful number, since it uses less digits than its factorization.

145446344554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78113002 (or 78112995 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 49.

It can be divided in two parts, 145446 and 344554, that added together give a square (490000 = 700²).

The spelling of 145446344554 in words is "one hundred forty-five billion, four hundred forty-six million, three hundred forty-four thousand, five hundred fifty-four".