145621552202 has 16 divisors (see below), whose sum is σ = 251970004800. Its totient is φ = 61825972128.

The previous prime is 145621552189. The next prime is 145621552243. The reversal of 145621552202 is 202255126541.

It is a super-2 number, since 2×145621552202² (a number of 23 digits) contains 22 as substring.

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, 48603827 + ... + 48606822.

It is an arithmetic number, because the mean of its divisors is an integer number (15748125300).

Almost surely, 2^145621552202 is an apocalyptic number.

145621552202 is a deficient number, since it is larger than the sum of its proper divisors (106348452598).

145621552202 is a wasteful number, since it uses less digits than its factorization.

145621552202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97210765.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 145621552202 its reverse (202255126541), we get a palindrome (347876678743).

The spelling of 145621552202 in words is "one hundred forty-five billion, six hundred twenty-one million, five hundred fifty-two thousand, two hundred two".